functions/Get-DbaLastBackup.ps1
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function Get-DbaLastBackup { <# .SYNOPSIS Get date/time for last known backups .DESCRIPTION Retrieves and compares the date/time for the last known backups, as well as the creation date/time for the database. Default output includes columns Server, Database, RecoveryModel, LastFullBackup, LastDiffBackup, LastLogBackup, SinceFull, SinceDiff, SinceLog, Status, DatabaseCreated, DaysSinceDbCreated. .PARAMETER SqlInstance The SQL Server that you're connecting to. .PARAMETER SqlCredential Credential object used to connect to the SQL Server as a different user .PARAMETER Database The database(s) to process - this list is auto-populated from the server. If unspecified, all databases will be processed. .PARAMETER ExcludeDatabase The database(s) to exclude - this list is auto-populated from the server .NOTES Tags: DisasterRecovery, Backup Author: Klaas Vandenberghe ( @PowerDBAKlaas ) Website: https://dbatools.io Copyright: (C) Chrissy LeMaire, clemaire@gmail.com License: GNU GPL v3 https://opensource.org/licenses/GPL-3.0 .LINK https://dbatools.io/Get-DbaLastBackup .EXAMPLE Get-DbaLastBackup -SqlInstance ServerA\sql987 Returns a custom object displaying Server, Database, RecoveryModel, LastFullBackup, LastDiffBackup, LastLogBackup, SinceFull, SinceDiff, SinceLog, Status, DatabaseCreated, DaysSinceDbCreated .EXAMPLE Get-DbaLastBackup -SqlInstance ServerA\sql987 Returns a custom object with Server name, Database name, and the date the last time backups were performed .EXAMPLE Get-DbaLastBackup -SqlInstance ServerA\sql987 | Select * Returns a custom object with Server name, Database name, and the date the last time backups were performed, and also recoverymodel and calculations on how long ago backups were taken and what the status is. .EXAMPLE Get-DbaLastBackup -SqlInstance ServerA\sql987 | Select * | Out-Gridview Returns a gridview displaying Server, Database, RecoveryModel, LastFullBackup, LastDiffBackup, LastLogBackup, SinceFull, SinceDiff, SinceLog, Status, DatabaseCreated, DaysSinceDbCreated #> [CmdletBinding()] param ( [parameter(Mandatory = $true, ValueFromPipeline = $true)] [Alias("ServerInstance", "SqlServer")] [DbaInstanceParameter[]]$SqlInstance, [Alias("Credential")] [PSCredential] $SqlCredential, [Alias("Databases")] [object[]]$Database, [object[]]$ExcludeDatabase ) process { foreach ($instance in $SqlInstance) { Write-Verbose "Connecting to $instance" try { $server = Connect-SqlInstance -SqlInstance $instance -SqlCredential $sqlcredential } catch { Write-Warning "Can't connect to $instance" Continue } $dbs = $server.Databases | Where-Object { $_.name -ne 'TempDb' } if ($Database) { $dbs = $dbs | Where-Object Name -In $Database } if ($ExcludeDatabase) { $dbs = $dbs | Where-Object Name -NotIn $ExcludeDatabase } foreach ($db in $dbs) { $result = $null Write-Verbose "Processing $db on $instance" if ($db.IsAccessible -eq $false) { Write-Warning "The database $db on server $instance is not accessible. Skipping database." Continue } # To avoid complicated manipulations on datetimes depending on locale settings and culture, # dates are compared to 0, which represents 1/01/0001 0:00:00 $SinceFull = if ($db.LastBackupdate -eq 0) { "" } else { (New-TimeSpan -Start $db.LastBackupdate).Tostring() } $SinceFull = if ($db.LastBackupdate -eq 0) { "" } else { $SinceFull.split('.')[0 .. ($SinceFull.split('.').count - 2)] -join ' days ' } $SinceDiff = if ($db.LastDifferentialBackupDate -eq 0) { "" } else { (New-TimeSpan -Start $db.LastDifferentialBackupDate).Tostring() } $SinceDiff = if ($db.LastDifferentialBackupDate -eq 0) { "" } else { $SinceDiff.split('.')[0 .. ($SinceDiff.split('.').count - 2)] -join ' days ' } $SinceLog = if ($db.LastLogBackupDate -eq 0) { "" } else { (New-TimeSpan -Start $db.LastLogBackupDate).Tostring() } $SinceLog = if ($db.LastLogBackupDate -eq 0) { "" } else { $SinceLog.split('.')[0 .. ($SinceLog.split('.').count - 2)] -join ' days ' } $daysSinceDbCreated = (New-TimeSpan -Start $db.createDate).Days if ($daysSinceDbCreated -lt 1 -and $db.LastBackupDate -eq 0) { $Status = 'New database, not backed up yet' } elseif ((New-TimeSpan -Start $db.LastBackupDate).Days -gt 0 -and (New-TimeSpan -Start $db.LastDifferentialBackupDate).Days -gt 0) { $Status = 'No Full or Diff Back Up in the last day' } elseif ($db.RecoveryModel -eq "Full" -and (New-TimeSpan -Start $db.LastLogBackupDate).Hours -gt 0) { $Status = 'No Log Back Up in the last hour' } else { $Status = 'OK' } $result = [PSCustomObject]@{ ComputerName = $server.NetName InstanceName = $server.ServiceName SqlInstance = $server.DomainInstanceName Database = $db.name RecoveryModel = $db.recoverymodel LastFullBackup = if ($db.LastBackupdate -eq 0) { $null } else { $db.LastBackupdate.tostring() } LastDiffBackup = if ($db.LastDifferentialBackupDate -eq 0) { $null } else { $db.LastDifferentialBackupDate.tostring() } LastLogBackup = if ($db.LastLogBackupDate -eq 0) { $null } else { $db.LastLogBackupDate.tostring() } SinceFull = $SinceFull SinceDiff = $SinceDiff SinceLog = $SinceLog DatabaseCreated = $db.createDate DaysSinceDbCreated = $daysSinceDbCreated Status = $status } Select-DefaultView -InputObject $result -Property ComputerName, InstanceName, SqlInstance, Database, LastFullBackup, LastDiffBackup, LastLogBackup } } } } |